<script setup>
import { getCategoryFilterAPI, getSubCategoryAPI} from '@/apis/category';
import { onMounted, ref } from 'vue';
import { useRoute } from 'vue-router';
import GoodsItem from '../Home/components/GoodsItem.vue';

//获取面包屑导航数据
const categoryData = ref({})
const route = useRoute()
const getCategoryData = async () => {
  const res = await getCategoryFilterAPI(route.params.id)
  categoryData.value = res.result
}

onMounted(()=> getCategoryData() )

//获取基础列表数据
const goodList = ref([])
const reqData = ref({
  categoryId:route.params.id,
  page:1,
  pageSize:20,
  sortField:'publishTime'
})
const getGoodList = async ()=>{
  const res = await getSubCategoryAPI(reqData.value)
  // console.log(res);
  goodList.value = res.result.items
}

onMounted(()=>getGoodList())

//Tab切换回调
const tabChange = ()=>{
  // console.log('tab切换了',reqData.value.sortField);
  reqData.value.page = 1
  getGoodList()
}

//无限滚动-加载更多
const disabled =ref(false)
const load = async ()=>{
  // console.log('加载ing!');
  reqData.value.page++
  const res = await getSubCategoryAPI(reqData.value)
  goodList.value = [...goodList.value,...res.result.items]
  //加载完毕停止监听
  if(res.result.items.length === 0 ) {
    disabled.value = true
  }
}

</script>

<template>
    <div class="container ">
        <!-- 面包屑 -->
        <div class="bread-container">
            <el-breadcrumb separator=">">
                <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
                <el-breadcrumb-item :to="{ path: `/category/${categoryData.parentId}` }">{{ categoryData.parentName }}
                </el-breadcrumb-item>
                <el-breadcrumb-item>{{categoryData.name}}</el-breadcrumb-item>
            </el-breadcrumb>
        </div>
        <div class="sub-container">
            <el-tabs v-model="reqData.sortField" @tab-change="tabChange">
                <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
                <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
                <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
            </el-tabs>
            <div class="body" v-infinite-scroll="load" :infinite-scroll-disabled="disabled" >
                <!-- 商品列表-->
                <GoodsItem v-for="goods in goodList" :goods="goods" :key="goods.id" />
            </div>
        </div>
    </div>
</template>



<style lang="scss" scoped>
.bread-container {
    padding: 25px 0;
    color: #666;
}

.sub-container {
    padding: 20px 10px;
    background-color: #fff;

    .body {
        display: flex;
        flex-wrap: wrap;
        padding: 0 10px;
    }

    .goods-item {
        display: block;
        width: 220px;
        margin-right: 20px;
        padding: 20px 30px;
        text-align: center;

        img {
            width: 160px;
            height: 160px;
        }

        p {
            padding-top: 10px;
        }

        .name {
            font-size: 16px;
        }

        .desc {
            color: #999;
            height: 29px;
        }

        .price {
            color: $priceColor;
            font-size: 20px;
        }
    }

    .pagination-container {
        margin-top: 20px;
        display: flex;
        justify-content: center;
    }


}
</style>
